Note that the hostname will (most likely) be the hostname of the gateway through which you connect to the internet and will therefore usually tell you your ISP. It will not give you the actual hostname of your machine unless for some bizzare reason you have an IP directly accessible from the net.

Bear this in mind if you're testing on a local machine as you'll get different results compared to when you upload it.

AOP Web Development

Can you get it even it the visitor surf anonymously? i mean even they try to use proxy ip?